Brummel
8efd12add6
Introduces `CallHooks` to enable extensions to the type inference and AST finalization process. This allows for more dynamic and configurable behavior without hardcoding symbol names in the compiler core. Specifically, this commit adds: - **`series_post_call`**: A hook for the `(series n)` function. It ensures that the return type is a fresh `TypeVar` when the element type is `Any`, allowing for proper type inference from subsequent `push` calls. - **`series_finalize`**: A hook for `(series n)` that rewrites the AST node. It replaces the generic `series` call with a pre-configured factory closure that allocates the correct series storage type (e.g., `ScalarSeries<f64>` for floats, `RecordSeries` for records). This avoids runtime dispatch and relies on type information captured during compilation. - **`push_post_call`**: A hook for the `(push series val)` function. It unifies the series element `TypeVar` with the pushed value's type. It also handles numeric and record field promotion and updates the `TypeVar` binding if a promotion occurs.